Wax-press.



J. HANSEN.

WAX PRESS.

APPLICATION FILED MAY 6, 1911.

Patented Apr. 23, 1912.

E'IE-l- JULIUS HANSEN, OF TEXAS CITY, TEXAS.

WAX-PRESS.

Specification 01 Letters Patent.

Application filed May 6, 1911.

Patented Apr. 23, 1912.

Serial No. 625,585.

which is suitably held in position in order To all whom it may concern:

Be it known that I, JULIUs HANSEN, a citizen of the United States, residing at- Texas City, in the county of Galveston and 5 State of Texas, have invented certain new and useful Improvements in Wax-Presses, of which the following is a specification, reference being had to the accompanying drawings.

My invention relates to wax presses, and more particularly to apparatus for pressing oil out of wax.

The object of my invention is to provide a wax press, particularly those used for paraflin Wax, which can be used cont-inuously, be self-dumping, and arranged so that once it is set up it need not be taken apart except for repairs and inspection.

Other objects of my invention will become apparent as it is more fully set forth.

Wax presses, as they are at present, have I to be often taken to pieces, that is opened, and the wax scraped off the canvas sheets by two men with scrapers, or spuds as they are technically called, which process is slow and tedious and often uncertain as to results, and, further, one cannot test the wax until the press has been taken to pieces as described.

' In my apparatus it is not necessary to take the press to pieces or even to remove any parts while the same is in operation, and the wax therein can be tested easily and at any time by the mere opening of a small 35 valve which I provide.

In the accompanying drawings, which illustrate an embodiment of my invention, Figure 1 is a sectional view of a pair of presses, in series, embodying my invention;

Fig. 2 is an end view of one. of the presses shown in Fig. 1, partly in section; and Fig.

3 shows a detail of the straining sheets;

Similar reference characters refer to similar parts throughout the drawings.

In the drawings, 1 represents a press of somewhat cylindrical shape which has end plates 2 secured to its sides 3 to form a casing. Between the plates 2 and the casing 3 are inserted a perforated steel sheet -1 and a canvas sheet 5 or sheets of somewhat similar material.

6 are bolts for holding the plates in posito prevent the wax from escaping out of the cylinder, except through the desired holes.

Provided in the upper portion of the cylinder or press is an inlet pipe 9 having a strainer 10 attached to the bottom of it, the strainer 10 being preferably composed of perforated tubing having a closed end. For an outlet, a pipe 11 is provided and is secured by ells, nipples and unions to connect it with the next press, the second press being also provided with a strainer at the part on the pipe that enters it, as clearly shown in the drawings. The second press is also provided with an. outlet which connects in the sameway with the inlet of the next press, and so on, until there are a suitable number of presses in series. Provided at the lower portion of the presses, on the outside plate, are grooves 2 in order to catch the oil as it is pressed through the press to the outside of the casing. It is, however, understood that any other suitable arrangement can be used for this purose. v p 12 is a small valve for permitting samples to be taken from each press, and 13 is a valve for checking the flow through any of the presses. In the use of these steam presses twelve or even more chambers or presses are commonly used and all the presses are inclosed within a steam casing 16 which raises the wax therein to a suitable temperature, suitable means being used to control the steam in order to vary the temperature as the process requires.

In operation, the wax is pumped from a tank'into a cooler or granulator and when at a desired temperature is pumped into the presses. There it is subjected to heat from the steam casing and pressure from the pump. The pressure of the pump on the wax forces the oil from thewax through a perforated canvas sheet 5, the steel sheet 4, and the outer casing plate 2 which is suitably perforated to permit the oil to be pressed through; thence the oil slides down the side of the casing and is gathered in the groove or cup 2 on each side of each press, suitable means being provided to gather the oil from these grooves and take it to where it can be stored. During this period, all the outlet valves are opened, and the wax is forced from one press to the next in series, until it reaches the last outlet, from whence it is conducted to some suitable storage tank.

During the process more or less oil is taken from the wax as it passes through each press, so that when it has reached the storage tank it is practically dried out. Thus it is apparent that the presses can be used continually because new wax can be forced into It can be easily seen that only oil can be pressed through the canvas sheet because the solidity of the wax is such that it isprevented from being pressed through. Should it be necessary, more canvas sheets, .or

sheets of similar. material, can be used in this process. It has been found that these sheets will continue working for a long pcriod so that it is not necessary to undo the presses for any purpose except to remove them and put new ones in their places. It is, of course, understood that by heating the presses while the oil is being pressed out of the opening of the outlet valve, that the pressure placed on the wax will not be sufiicient to force the wax through the canvas, but is sufficient to force it out of the presses.

The advantages ofmy apparatus are that it permits the straining of the wax to be done continuously and in a comparatively expeditious manner; also' it permits the samples to be readily taken from out of any of the presses and thereby give an intelligent knowledge as to the condition of the wax in the presses; further, the simplicity of, the apparatus is such that practically no skilled labor need be employed in its use, and also the repairs are practically small, and the cost to manufacture a whole set of these presses will be no more than'that of an ordinary type, although the additional advantages derived are many times greater, in which case the plates 4 and 2 are sufiiciently separated to permit the oil pressed out of the wax to pass between them and thence out of the holes provided in the end plates. By providing such an arrangement,

the wax is prevented from being forced out of the casing, even if the straining sheet 5 should be-damaged sufficiently to afford no resistance to the wax being forced through in the. perforated sheet it, because the wax will hit against the plates 2 and stop; its viscosity being suflicient to prevent it from flowing between. the plates refererd to. At the same time, the oil in the wax will escape out of the same into the intervening space stance.

Having thus described my invention, I claim vAwax press comprising in combination a cylinder, havingperforated end plates disposed relatively far apart, perforated metallic sheets disposed: adjacent to said plates but spaced suflicientlyapart therefrom to permit oil to flow therebetween, the perforations in said plates; and sheets being out of registr with one another, straining members o fabric disposed on the inner side of said sheets and forming linings in the cylinder, an inlet and outlet forsaid cylinder,

a strainer on theend of the inlet and extending therefrom into the central portion of said cylinder, said inlet and outlet being disposed in alinementwith one another and in the side portions of said cylinder.

' In testimony whereof I hereunto afiix my signature in the presence of two witnesses.

" JULIUS HANSEN.

-Witnesses:

A. E. NEWMAN, J. 0. 012cm. 

